<script lang="tsx">
import type {DescriptionProps, DescInstance, DescItem} from './typing';
import type {DescriptionsProps} from 'ant-design-vue/es/descriptions/index';
import type {CollapseContainerOptions} from '/@/components/Container/index';
import {
  type CSSProperties,
  type PropType,
  defineComponent,
  computed,
  ref,
  unref,
  toRefs,
} from 'vue';
import {get} from 'lodash-es';
import {Descriptions} from 'ant-design-vue';
import {CollapseContainer} from '/@/components/Container/index';
import {useDesign} from '/@/hooks/web/useDesign';
import {isFunction} from '/@/utils/is';
import {getSlot} from '/@/utils/helper/tsxHelper';
import {useAttrs} from '@xueyi/hooks';

const props = {
  useCollapse: {type: Boolean, default: true},
  title: {type: String, default: ''},
  size: {
    type: String,
    validator: (v) => ['small', 'default', 'middle', undefined].includes(v),
    default: 'small',
  },
  bordered: {type: Boolean, default: true},
  column: {
    type: [Number, Object],
    default: () => {
      return {xxl: 4, xl: 3, lg: 3, md: 3, sm: 2, xs: 1};
    },
  },
  collapseOptions: {
    type: Object as PropType<CollapseContainerOptions>,
    default: null,
  },
  schema: {
    type: Array as PropType<DescItem[]>,
    default: () => [],
  },
  data: {type: Object},
};

export default defineComponent({
  name: 'Description',
  props,
  emits: ['register'],
  setup(props, {slots, emit}) {
    const propsRef = ref<Partial<DescriptionProps> | null>(null);

    const {prefixCls} = useDesign('description');
    const attrs = useAttrs();

    // Custom title component: get title
    const getMergeProps = computed(() => {
      return {
        ...props,
        ...(unref(propsRef) as any),
      } as DescriptionProps;
    });

    const getProps = computed(() => {
      const opt = {
        ...unref(getMergeProps),
        title: undefined,
      };
      return opt as DescriptionProps;
    });

    /**
     * @description: Whether to setting title
     */
    const useWrapper = computed(() => !!unref(getMergeProps).title);

    /**
     * @description: Get configuration Collapse
     */
    const getCollapseOptions = computed((): CollapseContainerOptions => {
      return {
        // Cannot be expanded by default
        canExpand: false,
        ...unref(getProps).collapseOptions,
      };
    });

    const getDescriptionsProps = computed(() => {
      return {...unref(attrs), ...unref(getProps)} as DescriptionsProps;
    });

    /**
     * @description:设置desc
     */
    function setDescProps(descProps: Partial<DescriptionProps>): void {
      // Keep the last setDrawerProps
      propsRef.value = {
        ...(unref(propsRef) as Record<string, any>),
        ...descProps,
      } as Record<string, any>;
    }

    // Prevent line breaks
    function renderLabel({label, labelMinWidth, labelStyle}: DescItem) {
      if (!labelStyle && !labelMinWidth) {
        return label;
      }

      const labelStyles: CSSProperties = {
        ...labelStyle,
        minWidth: `${labelMinWidth}px `,
      };
      return <div style={labelStyles}>{label}</div>;
    }

    function renderItem() {
      const {schema, data} = unref(getProps);
      return unref(schema)
        .map((item) => {
          const {render, field, span, show, contentMinWidth} = item;

          if (show && isFunction(show) && !show(data)) {
            return null;
          }

          const getContent = () => {
            const _data = unref(getProps)?.data;
            if (!_data) {
              return null;
            }
            const getField = get(_data, field);
            // eslint-disable-next-line
            if (getField && !toRefs(_data).hasOwnProperty(field)) {
              return isFunction(render) ? render('', _data) : '';
            }
            return isFunction(render) ? render(getField, _data) : getField ?? '';
          };

          const width = contentMinWidth;
          return (
            <Descriptions.Item label={renderLabel(item)} key={field} span={span}>
              {() => {
                if (!contentMinWidth) {
                  return getContent();
                }
                const style: CSSProperties = {
                  minWidth: `${width}px`,
                };
                return <div style={style}>{getContent()}</div>;
              }}
            </Descriptions.Item>
          );
        })
        .filter((item) => !!item);
    }

    const renderDesc = () => {
      return (
        <Descriptions class={`${prefixCls}`} {...(unref(getDescriptionsProps) as any)}>
          {renderItem()}
        </Descriptions>
      );
    };

    const renderContainer = () => {
      const content = props.useCollapse ? renderDesc() : <div>{renderDesc()}</div>;
      // Reduce the dom level
      if (!props.useCollapse) {
        return content;
      }

      const {canExpand, helpMessage} = unref(getCollapseOptions);
      const {title} = unref(getMergeProps);

      return (
        <CollapseContainer title={title} canExpan={canExpand} helpMessage={helpMessage}>
          {{
            default: () => content,
            action: () => getSlot(slots, 'action'),
          }}
        </CollapseContainer>
      );
    };

    const methods: DescInstance = {
      setDescProps,
    };

    emit('register', methods);
    return () => (unref(useWrapper) ? renderContainer() : renderDesc());
  },
});
</script>
